Filter



(No Model.) v Y v SSheets-Sheet 1'r C. E. WIN'TBRROS.

FILTER. No.' 477,Z38.' Pate ted une '21, 1892. i Fy.ici E* j [Y I INVENTolg WITNESSES:

ATTORNEY (No Model.) ssneets-sneet 2.

C. E. -WINTERROS.

FILTER.

Patented June 21, 1892.

BY Ww A TT URNEY WITNESSES: 6%@ KM@ Z.

(No Model.) 3 Sheets-Sheet 3.

o. E. WINTBRROS.

FILTER.

No. 477,238. Patented June 21, 892.

llu// z @s W1 T NESSES 1 IN VEN T 0R gww" ATTRNEY battery of three filters.

.UNITED STATES flhTliivr OFFICE.

. CLAESERIC' WINTERROS, OF BROOKLYN, NEW YORK.

FILTER.

SPECIFICATION forming part of Letters IEatentl No. 477,238, dated June 21, 1892. Application ined may 5,1891. sal-iai No. 391,617. etmaal.)

York, have invented a new and useful Vlin-- provenient in Filters, of which 'the following 1s a full and true description, enabling others skilled in the art to which it pertains to make the same.

My invention relates to filters, and more especially to such filters as are used in sugarfiltering.

' It consists in a continuously operating and rotating device, more specifically described and illustrated in the accompanying specification and drawings, in which likeletters refer to like parts in each.

Figure 1 is a side View of the filter. Fig 2 is a section of the same. Fig. 3 is a vertical section'showing conveyor-screw. Fig. 4 is a Fig. 5 is a view showing filter dismounted. Fig. 6 is a view of cleaner, showing in dotted lines the filtercloth when bulged. Fig. 7 is a front 'view in section of filter-pan, skeleton, and central tube. Fig. Sis a cross-section of filter-pan. Fig. 9 is parts of pan. enlarged, in sections. Figs. 10 and 1l are also enlarged sections of parts of filter-pan. Fig. 12 is the outlet refuse-valve, part section. Fig. 13 is a section of the stnfing-boxes on B and F. p

A is a cylinder, Figs. 1 and 3, covered. on' both ends by the covers B and C. This cylindcr is on each lside provided with a trunnion A. The under part of A'has an opening, and roundthat opening is fastened a receiver D for the refuse. The apparatus is mounted on the two trnnnions A on two stands E. The cover B has a round opening in its center, through which passes one vend of the central tube F, Fig. 1; The other end of that tube is lodged in' a circular'opening in the cover C. .On 4that central tube is placed a number of filtering-pans G, Figs. 1 and S, strongly pressed together by nut and washer 011 the end of central tube, which is lodged in cover C, Fig. 2. letwpeu, ca ch pan on central tube is placed a ring, sogas to leave a space for a cleaner Il to hangl loosely between each pan on central tube, Figs. and G. In cover B is formed a stuffing-box round the central tube F. This is best shown in Fig. 13. .lrf this figure it will be seen that the outer end'of the revolving central tube F is lodged in' a stulngfbox formed on the'discharge-upright F3. lhe tube, being smaller than F3, passes freely inside of it, andv a thimble F?, which threads in an, enlargement f3 of F3, is screwed against the packing f. The angefand the thimble f2 come as vnearly as possible together and make a tighty joint.

The pipe M4, leading from the tank M, through which the liquor for cleansing the filter-pans passes into'th-e central tube F, is shown in Fig. 5 and also in Fig. 13. llts discharge is located on the upright pipe F3. NVhen' the cock on this pipe F3 is closed and the cock M4 is open, the liquor passes by gravity through the tube F and into the pa'nsand out through the holes of the metal and through the cloth` covers ot' the filter-pans intoI the cylinder A, thus reversing the process of filtering in the cleansing process, as described farther en Near to this stuing-box on the central tube is placed a toothed wheel I. To that-wheel is geared another smaller toothed wheel l ,and that one in its turn is geared to a third one 12,

placed on the end ofa convcyer-screw J in the K betteln of receiver D, Figs. 1 and 5. These wheels can be turned by means of abeltvor* otherwise, and the central tube, with its pans G and the conveyer J, consequently turned simultaneously.r r A Each filter-pan is constructed in the following manner: The interior body is a skeleton in the shape of a Wheel G', Fig. 7-a central ring-shaped body or hub from which extends a number of arms ending in its ring-shaped periphery,Figs. 7 and 8. On each side f this frame is placed. a perforated disk of sheet metal G2, Figs. 8, 9, and 10. This disk is exactly as large in diameter as the frame, and

it has an opening in its center as large as the inside diameterof the center of the frame, or, whichis the same, as large as the outside diameter of the central tube F. v Each of these perforated disks is covered with filter-cloth That cloth basan opening in its center equal to that ol the perforated disks; but its outside diameter is somewhat larger, so as to admit ef itsbeing folded over the outside periphery of the pan, as shown in Figs. 8 and l0. -A hoop G" is now passed over that folded part et the cloth in such a way as to firmly TIO hold the perforated disk, with its covering, in position. In each opening between the arms of the frame G' and between the two perforated disks is placed a supporting-frame of thin plate G5, Fig. 7. vThat frame consists of two side bars glo, running parallel with arms inthe main frame, and between these side bars are placed a number of cross-bars at a distance from each other equal to that at which the perforated plate can support the appropriated pressure. These bars are of the same width as the thickness-of the supporting-frame G' in its center and periphery. In Fig. 7 the whole is shownlplaced on the central tube F. That tube is of a larger diameter in that part on which the filter-pans are placed. At the whole length of that part run ribs F', Fig. 7. One of these ribshas a thicker edge, which lhas'a longitudinal groove. That groove has for its object to receive a key G, adjusted one in each pan in the center part ot' G', Fig. 7. By such means each pan is prevented from turning lon the shaft or tube. vThe rings Z, Figs. 8 and 9, placed between each pan, as before said, on the central tube, has the same inside and. outside diameter as the center part o t' the frame G.. The grooves GT on the central part of G and the holes F2 in the central tube, Fig. 7, are intended 4for the passage of the filtered liquid into the cen-l tral tube from the pans G. A

lt now liquid to be filtered is let into the cylinder through the opening A2, Fig. 1, it will fill the cylinder, submerging the pans Gr. 'lhe pressure of the liquid resulting from difference oflevel or by being pumped causes it to pass through the ilter-eloth and the perforated plates into the pans and, further, as before said, into the central tube F and is let out through the stationary pipe F3, Fig. 1. The lower end of that pipe is'provided with a stuffing-box, which surrounds the end of central 'tube F. The upper end of the bent outlet is in level with the highest point of the liquid inside the cylinder. In that way, if the liquid were -let in at A2 withoutvmore pressure than just to raise it to the outlet F3, which is the same as to fill the apparatus, the inside pressure of the pans and the outside pressure would be balanced in every part of the filtercloth-covered pans; but nothing would pass the outlet F3. That, being in level with the highest point of the liquid' in' the cylinder, will, as above explained, prevent any difterenee of pressure to occur on different parts of pans not lying on the same level. The central tube or shaft F- and all the pans fastened to it and the conveyor-screw connected with the gearing are now caused to revolve. All the cleaners II, Figs. 3 and'G, being stationary and barely touching the sides of the filter-pans, will not permit more than a very thin layer of refuse to stick to the filter-cloth. 'lhe rest continually follows the sides of the cleaner Il, partly by gravity and partly by a slight pressure ',:ausetby the velocity ot the particles loosened from the revolving pans,

for three filters.

and falls down into thev receiver D and settles in the bottom of D around the conveyerscrew J, by means ot' which it is slowly pressed out through the outlet-pipe D. To regulate that press u re, so as cause the liquid to be squeezed out as much as possible from the' refuse and retain the liquid in the apparatus, a eonic valveD2 is provided at the end of the tube D', Figs. 1 and 12. This valve ,has a piston D3,

here forms a cylinder. A spiral spring D:l is

.placed behind the piston D3, against which it presses, so as to put the valve in motion, until it is checked by the nut D6. The farther end of the frame D4 is shaped to a sleeve, the inside of which is provided with threads which fit t0 outside threads onthe tube D4 and by means of which the Whole frame by turning can be advanced or retired, so as to close or open the valve D2. The spring D5 helps to equalize the pressure against the passing refuse, which is forced out in ring-shaped form.

In order to produce a more complete filtering, the device may be arranged in batteries, and bypassing the liquid to be filtered through a number of the filters, each one filtering the liquid more and more, a better result may be obtained. Fig. 4 shows an arrangement The liquid is let in at L and passes through filter No. 1, and from No. 1 to No. 2 through the pipe L2, and so on until a satisfactory filtering is obtained.

In the event of the ltercloth becoming stopped up with impurities, so as to prevent "the liquid from runnirfg` thrcugh, except under great pressure, a means is provided for cleansing them as follows: The upper part of cylinder No. 2 is provided with a tank M, whichis continually filled with liquid. tank is provided with a float N on one end ot' That a levert The lever is pivoted at N'. The other end is in connection with an inlet-valve M', which is regulated by the float, so as to keep the liquid always at the same level.'

The inlet-valve L4 and the'outlet-valve L5 are 4first closed, and the three Vcocks M2, M3, and

M4 are opened to allow the liquid to enter the.

4will cause the filter-cloth coverings` of the perforated disks to bulge from the disks until they meet' each other in the space between the pans, and as the pans revolve they will press against each other, except at the points` where the cleaner ll interposes. These cleaners being stationary, as the revolving filter-cloth passes them it will buckle on the edge of the cleaner, and thus scrape off the dirt lrom the lodged in the rear part of the frame D,whicl1 i IIO ence in liquid-levels Q and P. As the cloths are stretched, there will always be an opening on both sides of each branch of the cleaner Il, which form canals leading down to thereceiver D. The edges of these -canals are shown in dotted lines in Fig. 6.

The peculiarity of this is that it causes the filter-cloth to buckle and form moving curves or waves on each filter-cloth. This causes every foreign particle in the cloth to change position, and thus by the assistance of the pressure from the liquid on the inside forces out 4the particles in the pores.

If the pans or any part of the filter should need repairing, they can be dismounted in the following manner: The cover C Ais iinscrewed and taken away, as shown in ,Figi 5. The nut a`nd washer, Fig. 2, holding the pans on the central tube are removed, leaving the pans free. A tube X, with the same diameter a's the outside of ribs F', Fig. 7, on central tube,

is strongly fastened `to the'- end of central tube by the long bolt R', whiclrextends through the whole length of the tube Xand has a haiidie R for turning it. When this is done, the apparatus is put into an inclined position, as

Mvthe `trunnions T.

in Fig..5, untiLthe pans slide slowly with their own gravity and` stop against the sleeve X', which rests on a supporter S. taken away, all 4t-he pans are now resting on the incline plane T,and that is balanced on The` bolt v `Rl is then unthe hole X2, Fig. 5, so as t hol'd the pans in position on X, and the balance T, with the' pans resting on it, isturned into avhorizontal position. -Tlie whole system of pans now bcing in level with the floor can be rolledaway for repairing. c b 1 The filter, as described andshown, has a specialfeature about it which gives it a dis-- tinction from the one for which an application was filed in September, 1890, by me, Serial No. 366,701. Its axis when working is preferably horizontal, though by means of the ,trunnions AV it may be put to work in an .inclined position on the basis' of th-e above.

I give this the name vof a horizontal filter.

I therefore claim- I 1. The combination, in a horizontal filter, of

.a loosely-trunnioned cylindrical -main chamber and an auxiliaryrefuse chamber, the main chamber having an opening in one end adapted to admit the passage of al1-axial tube and the auxiliary. chamber .having an open-j ing on one end adapted to beused as a bearing'for a carry-screw and on the other end a valve-chamber with an opening for the discharge of refuse, as herein described and set forth.

2. The combination, in a horizontal filter having a triinnioned main chamber andan under refuse-chamber terminating in a valvechamber with an opening for the discharge of refuse regulated by avalve, of a central per- If Sis :separating each .forated axial tube passing through the main chamber and through a stuffing-box located on the end of the chamber, the said central tube having horizontal ribs, upon which is keyed a series of grooved rings with radial arms, as herein described and set forth.

3. In a horizontal filter, the combination of a main chamber with anauxiliary chamber, the auxiliary chamber having an opening on one end adapted to be a bearing for a refuse carry-screw and on the other end a valvechamber with an opening controlled by a valve forl the discharge of the refuse, the main chamber having aribbed and perforated central tube with a series of grooved annular rings keyed upon it, the rings having radial arms, and a series of concentric rings located between said arms, as herein described and set forth. a d l n 4. In a horizontal filter, the combination, with the central tube, of foramin'ated disks thereon, each having a central opening for the the surface, with filter-cloth upon said disks, having folded seamsl .lying in said grooves, frame placed between each pair of said disks, substantially as described.

5. In a horizontal filter,

tube and grooves upon the combination of the central tube having a series of meand the supportingtallic grooved andforaminated'disks thereon, I

with supporting-frames between each pair of said disks, upon which are placed in segments or entire circles filter-cloth the perimeter of which extends beyond and is adapted to fold over the'perimet'erof the metal dislfs, anda binding-ring adapted to pass over the foldedl or extended cloth edge and firmly bind the s ame to the perimeter'of the metal disks, as herein described and set forth.

6. n In a horizontal filter, in combination with a main' chamber andan auxiliary refusechambei, the main chamber having a central tube adapted to revolve, upon' whichis fixed a series of foraminated metal and cloth-covered disks, with a supporting-frame between Aeach pair of said disks and an annular ring pair of said disks, and a` cleaning-fork H,loosely fixed upon it, the end' of the fork H extendin g into the ref use-cham.-

ber in which it is engaged and prevented from revolving with the central tube, as herein described and set forth.

'7. In ahorizontal filter having a main cham- IOO IIO

berwith a central perforated tube, upon which is placed a lseries of fo'raminated and clothlcovered metal disks, with an. annular ring separating each pair,`upon which is loosely hung a cleaning-fork, the combination of a lower-,orvrefuse chamber and acarryfscrew operating in said chamber, the discharge end of the screw entering into a valve-case containing a valve, the operation of which is controlled by a spring, as herein described and set forth.

8. The combination, in a filter consist-ing of a main chamber and a refuse-chamber, the main chamber having va central perforated f 4 l v '477,238

tube, upon which is placed a series of foraminatcd metal and cloth-covered disks, the refuse-chamber containing a carry-screw, the end of which enters-into a Valve-case con' taining a valve, the opening of -whiclris controlled by a spring, aigd a lsupply-tank thc inlet-valve of which is regulated by a float, and the outlet-pipe, controlled by a cock, is connected with thc central tube ofzthe ni'ainchamber and thence with the pans through the pcrforatons in the central tube, and grooves in the center rings of the pans, as and for thc purpose herein showuand deL scribed.

9. Aliorizontal rotating filter consisting of a trunnioned cylindrical chamber with inlet and outlet parts, having a central perforated tube, upon which is strung a series of foramiuatod metal and cloth-covered filter-pans whiclrrotate with the central tube, and anl CLAES ERIC WINTERRos. lVitnesses:

F. M. SENIOR, ALERED BEATrIE,` Jr. 

